Predicted to enable 3-hydroxyacyl-CoA dehydratase activity and enzyme binding activity. Predicted to be involved in fatty acid elongation; sphingolipid biosynthetic process; and very long-chain fatty acid biosynthetic process. Predicted to act upstream of or within fatty acid biosynthetic process. Predicted to be located in endoplasmic reticulum. Predicted to be integral component of endoplasmic reticulum membrane. Is expressed in several structures, including central nervous system and retina. Orthologous to human HACD4 (3-hydroxyacyl-CoA dehydratase 4). [provided by Alliance of Genome Resources, Apr 2022]