Enables neutral amino acid transmembrane transporter activity. Acts upstream of or within D-alanine transport and D-serine transport. Predicted to be located in apical dendrite and neuronal cell body. Is expressed in brain; embryo mesenchyme; naris; and spinal cord ventricular layer. Orthologous to human SLC7A10 (solute carrier family 7 member 10). [provided by Alliance of Genome Resources, Apr 2022]