Predicted to enable choline transmembrane transporter activity and ethanolamine transmembrane transporter activity. Predicted to be involved in choline transport; ethanolamine transport; and transmembrane transport. Predicted to be located in mitochondrial outer membrane and plasma membrane. Predicted to be active in membrane. Is expressed in several structures, including digestive system; notochord; otic vesicle; pectoral fin; and sensory system. Orthologous to human SLC44A2 (solute carrier family 44 member 2 (CTL2 blood group)).