GM2A is a gene which encodes a small glycolipid transport protein and also stimulates the enzymatic processing of gangliosides.
The protein encoded by this gene is a small glycolipid transport protein which acts as a substrate specific co-factor for the lysosomal enzyme -hexosaminidase A. GM2A is a lipid transfer protein that stimulates the enzymatic processing of gangliosides, and also T-cell activation through lipid presentation. 
