Abanulo was ordained in Nigeria in 1990 and came to the U.S. in 2003 after a stint in Chad. His first U.S. role was as an associate pastor in the diocese of Oakland, California, where his ministry focused on the fast-growing Nigerian Catholic community. Since then, he has been a hospital chaplain and pastor in Nashville, Tennessee, and a chaplain at the University of Alabama.
Abanulo yahawe inshingano muri Nijeriya mu 1990 avuye muri Amerika mu 2003 nyuma ajya gukorera muri Tchad. Inshingano yagize bwa mbere muri Amerika ni uko yabaye umushumba wungirije muri diyosezi ya Oakland, muri Californiya, aho ibikorwa bye byibanze ku muryango w'Abagatolika bo muri Nijeriya ugatera imbere. Kuva icyo gihe, yabaye umupadiri w'umwanditsi aba n'umushumba i Nashville, muri Tennesse, akaba n'umupadiri muri kaminuza ya Alabama.