GO:0008532

N-acetyllactosaminide beta-1,3-N-acetylglucosaminyltransferase activity

Details: 
Catalysis of the reaction: UDP-N-acetyl-D-glucosamine + beta-D-galactosyl-1,4-N-acetyl-D-glucosaminyl-R = UDP + N-acetyl-beta-D-glucosaminyl-1,3-beta-D-galactosyl-1,4-N-acetyl-D-glucosaminyl-R. [EC:2.4.1.149]
Evidence Code: