Inorganic phosphate and glucose-6-phosphate antiporter. May transport cytoplasmic glucose-6-phosphate into the lumen of the endoplasmic reticulum and translocate inorganic phosphate into the opposite direction. Independent of a lumenal glucose-6-phosphatase. May not play a role in homeostatic regulation of blood glucose levels.
Endoplasmic reticulum membrane ; Multi-pass membrane protein .
Detected in intestine and pancreas. Lower expression is also detected in liver and kidney.