Predicted to enable SH2 domain binding activity. Involved in regulation of neurotransmitter uptake. Predicted to be located in synapse. Predicted to be active in neuromuscular junction and synaptic vesicle membrane. Orthologous to human SYNGR3 (synaptogyrin 3); INTERACTS WITH 2,3,7,8-tetrachlorodibenzodioxine; 2,3,7,8-Tetrachlorodibenzofuran; acrylamide.