Predicted to enable amino acid transmembrane transporter activity. Predicted to be involved in amino acid import; neutral amino acid transport; and regulation of glutamate secretion, neurotransmission. Predicted to act upstream of or within sodium ion transport. Predicted to be located in membrane. Predicted to be active in plasma membrane. Is expressed in lens; notochord; and solid lens vesicle. Orthologous to human SLC38A2 (solute carrier family 38 member 2).