Predicted to enable enzyme binding activity and serotonin:sodium symporter activity. Predicted to be involved in aminergic neurotransmitter loading into synaptic vesicle; regulation of ion transport; and serotonin uptake. Predicted to act upstream of or within neurotransmitter transport. Located in synapse. Is expressed in several structures, including adrenal gland; alimentary system; genitourinary system; immune system; and nervous system. Human ortholog(s) of this gene implicated in bipolar disorder and schizophrenia. Orthologous to human SLC18A1 (solute carrier family 18 member A1). [provided by Alliance of Genome Resources, Apr 2022]