Predicted to enable N-acetyllactosaminide beta-1,3-N-acetylglucosaminyltransferase activity. Predicted to be involved in poly-N-acetyllactosamine biosynthetic process. Predicted to act upstream of or within several processes, including axon guidance; cellular response to leukemia inhibitory factor; and sensory perception of smell. Predicted to be integral component of membrane. Predicted to be active in Golgi membrane. Orthologous to human B3GNT2 (UDP-GlcNAc:betaGal beta-1,3-N-acetylglucosaminyltransferase 2). [provided by Alliance of Genome Resources, Apr 2022]