Enables SH3 domain binding activity and SNARE binding activity. Involved in DNA repair; chromosome segregation; and microtubule cytoskeleton organization. Acts upstream of or within SNARE complex assembly and viral entry into host cell. Located in phagocytic vesicle. Part of protein-containing complex. Is expressed in midgut; smooth muscle tissue; and thyroid gland. Orthologous to human UVRAG (UV radiation resistance associated). [provided by Alliance of Genome Resources, Apr 2022]