Predicted to enable N-acetylneuraminate 7-O(or 9-O)-acetyltransferase activity. Predicted to be involved in carbohydrate metabolic process. Predicted to be located in Golgi apparatus and membrane. Predicted to be integral component of membrane. Predicted to be integral component of Golgi membrane. Is expressed in several structures, including liver; lung; placenta; spleen; and yolk sac. Orthologous to human CASD1 (CAS1 domain containing 1). [provided by Alliance of Genome Resources, Apr 2022]