ID 2.4.99.11 DE Lactosylceramide alpha-2,6-N-sialyltransferase. CA CMP-N-acetylneuraminate + beta-D-galactosyl-(1->4)-beta-D-glucosyl- CA (1<->1)-ceramide = CMP + alpha-N-acetylneuraminyl-(2->6)-beta-D- CA galactosyl-(1->4)-beta-D-glucosyl-(1<->1)-ceramide. //