[5][6] Janner-Klausner represents a progressive Jewish voice to British Jewry and the wider public, speaking on affairs including Israel-Palestine, social justice, same-sex marriage and interfaith relations.

[8] She is Co-Chair of the Global Interfaith Commission on LGBT+ Lives[9] and an honorary fellow of The Edward Cadbury Centre for the Public Understanding of Religion at the University of Birmingham.

As a young girl, Janner-Klausner regularly travelled to constituency surgeries at the weekends with her father, Greville Janner, a QC and then a Labour Member of Parliament.

Janner-Klausner's great-uncle, Emeritus Chief Rabbi of Great Britain, Sir Israel Brodie, had a profound influence on her growing up.

[4] Janner-Klausner spent her gap year in Israel and was a representative of British Reform Judaism at Machon L'Madrichei Chutz La'Aretz (The Institute for Youth Leaders from Abroad).

[15][16] Janner-Klausner studied divinity at Trinity Hall, Cambridge (the alma mater of her father and brother),[17] where she was taught by Rowan Williams, later Archbishop of Canterbury.

[17] Following her graduation, aged 22, Janner-Klausner moved to Israel and began teaching Jewish history, Judaism and youth leadership at the Machon L'Madrichei Chutz La'Aretz.

Janner-Klausner featured in a BBC radio series presented by Jonathan Freedland in 2008 entitled British Jews and the Dream of Zion, discussing the 1947 United Nations Partition Plan for Palestine.

[21] Chair-elect of Reform Judaism, Jenny Pizer, said Janner-Klausner was "an influential broadcaster and writer, a great teacher and a popular rabbi of one of our flourishing communities".

[21] Shortly after being appointed, Janner-Klausner set improving periodically fraught relations between the Orthodox and Reform Judaism as part of her agenda.

"[3] In November 2014, Janner-Klausner featured in "Beyond Belief" by The Huffington Post, a series of interviews with Britons who use faith "to create a force for positive change".

[3] The article, entitled "How Britain's Only Female Head Of Faith Took On The Religious Establishment, And Won", explored Janner-Klausner's early life and professional career.

[25] In May 2013, following the murder of Lee Rigby, Janner-Klausner joined faith leaders in solidarity with Woolwich residents and its Muslim community at the Greenwich Islamic Centre.

Janner-Klausner signed an open letter from Christian and Jewish faith leaders including Danny Rich, chief executive of Liberal Judaism, and Alan Wilson, the Bishop of Buckingham, voicing support for gay marriage.

[35] During debate over the Dubs Amendment to the Immigration Bill to grant 3,000 unaccompanied child refugees entry to the UK, Janner-Klausner spoke extensively in its favour.

[38] Internationally, Rabbi Janner-Klausner has spoken out against the treatment of refugees crossing the US-Mexico border by the Trump administration, saying "the numbing of empathy, the dehumanisation of other people through the encouragement of disdain are documented stages in history that have led to atrocities and even genocides".

[40] She supports two states for Israel and Palestine as the sustainable and just solution to the present conflict, having facilitated Israeli-Palestinian dialogue for the European Union whilst living in Jerusalem and led tours to the West Bank with British Friends of Rabbis for Human Rights.