Predicted to enable metal ion binding activity and tubulin binding activity. Involved in synaptic vesicle endocytosis. Acts upstream of or within several processes, including chemical synaptic transmission; dopamine metabolic process; and negative regulation of neuron apoptotic process. Located in synapse. Is expressed in central nervous system; peripheral nervous system; retina; stomach; and testis. Human ortholog(s) of this gene implicated in Lewy body dementia and Parkinson's disease. Orthologous to human SNCB (synuclein beta). [provided by Alliance of Genome Resources, Apr 2022]