Electrogenic metabolite transporter. Ubiquitous. Expressed in proximal tubular cells of the kidney. Cleaved in lysosomes by cathepsin L between Leu-214 and Ala-261, generating a N-glycosylated N-terminal and a non-glycosylated C-terminal fragment. A chromosomal aberration involving DIRC2 has been found in a family with renal carcinoma. Translocation t(2;3)(q35;q21) (PubMed:11912179). Belongs to the major facilitator superfamily.