Transports S-adenosylmethionine. Transport is inhibited by S-adenosylethionine and to a lesser extent by S-adenosylhomocysteine. Unlike eukaryotic transporters is not inhibited by sinfungin. Also inhibited by 2.4-dinitrophenol, suggesting transport is an energy-dependent process. Belongs to the drug/metabolite transporter (DMT) superfamily. 10 TMS drug/metabolite exporter (DME) (TC 2.A.7.3) family.