Predicted to be involved in exocytosis and positive regulation of exocytosis. Predicted to act upstream of or within dense core granule exocytosis and synaptic vesicle exocytosis. Predicted to be located in endomembrane system. Predicted to be active in glutamatergic synapse. Is expressed in hatching gland; nervous system; otic vesicle; pronephric duct; and trigeminal placode. Orthologous to human CADPS2 (calcium dependent secretion activator 2).