Predicted to enable identical protein binding activity and protein C-terminus binding activity. Involved in synaptic vesicle uncoating. Located in cytoplasm. Is expressed in several structures, including adrenal gland; central nervous system; dorsal aorta; peripheral nervous system; and testis. Orthologous to human SH3GL3 (SH3 domain containing GRB2 like 3, endophilin A3). [provided by Alliance of Genome Resources, Apr 2022]