Amino acid transporter that specifically mediates the pH- dependent export of the cationic amino acids arginine, histidine and lysine from lysosomes. {ECO:0000269|PubMed:22822152, ECO:0000269|PubMed:23169667}. This is the function of ENSG00000040487 (SLC66A1, solute carrier family 66 member 1).