[1] He held several important functions and duties, such as: In May 2023, he was elected as the Deputy President of the Party of Justice and Reconciliation.

He is successfully and dedicatedly engaged in political activities, but also in humanitarian work, which was particularly highlighted during the coronavirus pandemic when he and his team helped hundreds of families across the country.

He has participated in numerous scientific gatherings, international conferences, and summits around the world.

In March 2024 he was elected as the Vice-president of National Assembly of the Republic of Serbia.

It was announced on 24 October 2022 that Đerlek would serve as minister without portfolio in the third cabinet of Ana Brnabić.