3.2.1.123 hydrolysis EGALC hydrolyzes 6-gala series glycosphingolipids to produce intact oligosaccharides and ceramides 703903 3.2.1.123 hydrolysis of O-glycosyl bond - - 3.2.1.123 transglycosylation EGALC transfers oligosaccharides from the glycosphingolipids to acceptors such as fluorescent 1-alkanols 703903