[1] Zulkifli was appointed as a Senator assembling in the Dewan Negara or the State Council in order be positioned as the new deputy minister as he was not a Member of Parliament (MP).

Zulkifli has also served on various expert panels, including those concerning Muamalat and Halal regulation for JAKIM (the Department of Islamic Development Malaysia), and has been involved in committees related to Syariah and legal education.

[4] Zulkifli has served as the Board of Trustee of Global Peace Mission Malaysia and held leadership positions such as former Chairman of the Malaysian Islamic Youth Movement in Negeri Sembilan.

[5] In the United Kingdom, he was involved with the Durham Islamic Society and the Palestine Solidarity Campaign.

Similarly, in the United States, Zulkifli contributed to the Association of Muslim Lawyers of New York and the Fordham Islamic Society.