Butyryl CoA is a substrate for Butyryl CoA Dehydrogenase. Butyryl CoA is involved in both lipid and butanoate metabolism. Butyryl-CoA may be used as a substrate of various lipases and as an alternate substrate for 4-hydroxybutyrate CoA-transferase. Butyryl CoA may be used to study the newly discovered process of post-translational histone modification by butyrylation.