Is predicted to encode a protein with the following domains: PQ loop repeat; NAD(P)-binding domain superfamily; Caenorhabditis protein of unknown function, DUF267; short chain dehydrogenase; Protein of unknown function DUF267, Caenorhabditis species; Short-chain dehydrogenase/reductase SDR; Lysosomal cystine transporter; and PQ-loop repeat. Is an ortholog of C. elegans
ctns-1. In C. elegans,
ctns-1 is involved in L-cystine transport; lysosome organization; and phagocytosis.