Transports PGD2, as well as PGE1, PGE2 and PGF2A. Mediates the clearance of prostaglandins from the circulation through uptake across cell membrane which allows cytoplasmic oxidation and prostaglandin signal termination (PubMed:15044627, PubMed:7754369). May mediate the release of newly synthesized prostaglandins from cells and the transepithelial transport of prostaglandins (Probable). prostaglandin E2(out) = prostaglandin E2(in) prostaglandin D2(out) = prostaglandin D2(in) prostaglandin E1(out) = prostaglandin E1(in) prostaglandin F2alpha(out) = prostaglandin F2alpha(in) thromboxane B2(out) = thromboxane B2(in) Belongs to the organo anion transporter (TC 2.A.60) family. Was originally thought to be a nuclear DNA-binding protein. Truncated N-terminus.