Sodium-coupled monocarboxylate transporter 2 (SLC5A12)

Acts as an electroneutral and low-affinity sodium (Na(+))-reliant sodium-coupled solute transporter. Catalyzes the transport across the plasma membrane of many monocarboxylates such as lactate, pyruvate, nicotinate, propionate, butyrate and beta-D- hydroxybutyrate.

May be responsible for the first step of reabsorption of monocarboxylates in the lumen of the proximal tubule of the kidney and the small intestine. May play also a role in monocarboxylates transport from the retina (By similarity).