該基因編碼的膜蛋白是葉酸的轉運體，參與調節細胞內葉酸濃度。已經發現了三種編碼該基因不同亞型的轉錄變體。[由RefSeq提供，2011年3月]
The membrane protein encoded by this gene is a transporter of folate and is involved in the regulation of intracellular concentrations of folate. Three transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Mar 2011]