Enables sialyltransferase activity. Predicted to be involved in oligosaccharide metabolic process. Predicted to act upstream of or within N-acetylneuraminate metabolic process. Predicted to be located in Golgi apparatus and membrane. Predicted to be integral component of membrane. Is expressed in several structures, including brain; genitourinary system; lung; skeletal muscle; and spleen. Orthologous to human ST6GAL2 (ST6 beta-galactoside alpha-2,6-sialyltransferase 2). [provided by Alliance of Genome Resources, Apr 2022]