Does not function as sodium/D-glucose symporter ( ). However, may function as a D-glucose sensor by generating a D-glucose-induced depolarization which is pH-independent, Na(+)-dependent at neutral pH and probably H(+)-dependent at acidic pH ( , ).
Subcellular locations: Cell membrane
Expressed in skeletal muscle, where it may localize to the neuromuscular junction (at protein level) . Expressed in small intestine where it may localize to cholinergic neurons of the submucosal plexus and myenteric plexus (at protein level) . Detected in kidney (at protein level) .