Sialin (SLC17A5)

Transports glucuronic acid and free sialic acid out of the lysosome after it is cleaved from sialoglycoconjugates undergoing degradation, this is needed for normal CNS myelination. Mediates aspartate and glutamate membrane potential- dependent uptake into synaptic vesicles and synaptic-like microvesicles.

Also functions as an electrogenic 2NO(3)(-)/H(+) cotransporter in the plasma membrane of adrenal gland acinar cells, mediating the physiological nitrate efflux, 25 percent of the circulating nitrate ions is normally removed and secreted in saliva. .