Predicted to enable DNA binding activity; GTPase activator activity; and metal ion binding activity. Acts upstream of or within acrosome assembly; intermediate filament organization; and spermatid nucleus differentiation. Located in cell projection; cytoplasmic vesicle; and neuronal cell body. Used to study male infertility. Orthologous to human AGFG1 (ArfGAP with FG repeats 1). [provided by Alliance of Genome Resources, Apr 2022]