St8sia3 - ST8 alpha-N-acetyl-neuraminide alpha-2,8-sialyltransferase 3

Enables alpha-N-acetylneuraminate alpha-2,8-sialyltransferase activity. Predicted to be involved in several processes, including ganglioside biosynthetic process; glycoprotein metabolic process; and protein sialylation. Predicted to be located in Golgi apparatus and membrane. Predicted to be integral component of membrane. Is expressed in brain and testis. Orthologous to human ST8SIA3 (ST8 alpha-N-acetyl-neuraminide alpha-2,8-sialyltransferase 3). [provided by Alliance of Genome Resources, Apr 2022]