Predicted to enable L-arginine transmembrane transporter activity and L-lysine transmembrane transporter activity. Predicted to be involved in L-arginine transmembrane transport; amino acid homeostasis; and lysine transport. Predicted to act upstream of or within amino acid transport. Predicted to be located in intracellular membrane-bounded organelle. Predicted to be integral component of organelle membrane. Predicted to be active in lysosomal membrane. Predicted to be integral component of membrane. Is expressed in embryo. Orthologous to human SLC66A1 (solute carrier family 66 member 1). [provided by Alliance of Genome Resources, Apr 2022]