Predicted to be involved in mitochondrial proton-transporting ATP synthase complex assembly. Located in mitochondrion. Human ortholog(s) of this gene implicated in mitochondrial complex V (ATP synthase) deficiency, nuclear type 1. Orthologous to human ATPAF2 (ATP synthase mitochondrial F1 complex assembly factor 2). [provided by Alliance of Genome Resources, Apr 2022]