lactosylceramide alpha-2,6-N-sialyltransferase; cytidine monophosphoacetylneuraminate-lactosylceramide sialyltransferase; CMP-acetylneuraminate-lactosylceramide-sialyltransferase; CMP-N-acetylneuraminic acid:lactosylceramide sialyltransferase; CMP-s • • •