The function of Ensembl gene identifier ENSG00000139514 (SLC7A1, solute carrier family 7 member 1) is as follows. High-affinity, low capacity permease involved in the transport of the cationic amino acids (arginine, lysine and ornithine) in non-hepatic tissues. {ECO:0000269|PubMed:10485994, ECO:0000269|PubMed:9174363}.