Predicted to enable cysteine transmembrane transporter activity. Predicted to be involved in cysteine transmembrane transport; negative regulation of melanin biosynthetic process; and pigment metabolic process involved in pigmentation. Predicted to act upstream of or within hair follicle development and pigmentation. Predicted to be located in late endosome; lysosome; and melanosome. Predicted to be integral component of plasma membrane. Orthologous to human MFSD12 (major facilitator superfamily domain containing 12). [provided by Alliance of Genome Resources, Apr 2022]