lactosylceramide alpha-2,3-sialyltransferase activity

Catalysis of the reaction: cytolipin-H + CMP-N-acetylneuraminate = alpha-N-acetylneuraminyl-2,3-beta-D-galactosyl-1,4-beta-D-glucosylceramide + CMP. Alpha-N-acetylneuraminyl-2,3-beta-D-galactosyl-1,4-beta-D-glucosylceramide is also known as GM3.

• Code: GO:0047291
• Source: Gene Ontology
• Alternative labels: GM3 synthase activity ganglioside GM3 synthetase activity CMP-acetylneuraminic acid:lactosylceramide sialyltransferase activity ganglioside GM3 synthase activity cytidine monophosphoacetylneuraminate-lactosylceramide sialyltransferase CMP-N-acetylneuraminate:lactosylceramide alpha-2,3-N-acetylneuraminyltransferase activity CMP-acetylneuraminate-lactosylceramide-sialyltransferase SAT 1 CMP-sialic acid:lactosylceramide-sialyltransferase activity GM3 synthetase activity cytidine monophosphoacetylneuraminate-lactosylceramide alpha2,3- sialyltransferase activity