Enables L-amino acid transmembrane transporter activity. Acts upstream of or within L-amino acid transport. Predicted to be located in several cellular components, including basolateral plasma membrane; external side of apical plasma membrane; and microvillus membrane. Predicted to be integral component of membrane. Predicted to be part of amino acid transport complex. Is expressed in several structures, including central nervous system; cochlea; early conceptus; incisor; and limb. Used to study autism spectrum disorder. Orthologous to human SLC7A5 (solute carrier family 7 member 5). [provided by Alliance of Genome Resources, Apr 2022]