Predicted to enable ATP binding activity. Involved in neuromuscular synaptic transmission. Located in presynaptic periactive zone. Expressed in epithelial cell and nervous system. Human ortholog(s) of this gene implicated in several diseases, including X-linked epilepsy with variable learning disabilities and behavior disorders; major depressive disorder; and non-syndromic X-linked intellectual disability 50. Is an ortholog of human SYN3 (synapsin III).