On June 30, 2024, he became interim president of the Council of the Chief Rabbinate, alongside Rabbi Eliezer Igra who serves as interim president of the rabbinical court, after chief rabbis David Lau and Yitzhak Yosef ended their terms with no successor named.

Soon after he completed his service, the Yom Kippur War broke out and he began the task of identifying bodies of those who fell in battle.

[citation needed] During the 2014 Gaza War, it was Roja who made the final halakhic decision that identified that soldiers Oron Shaul and Hadar Goldin were dead.

He has the rank of lieutenant colonel in the army and serves as an advisor of the IDF to identify the remains of victims of war.

[6] Roja was principal of Segulah School in Bnei Brak, but moved to Bat Yam to become head of the Aderet Yeshiva.