Predicted to enable bisphosphoglycerate mutase activity; hydrolase activity; and phosphoglycerate mutase activity. Acts upstream of or within myoblast fusion. Is expressed in musculature system; pectoral fin; pericardial region; and pharyngeal arch 3-7 skeleton. Human ortholog(s) of this gene implicated in myoglobinuria. Orthologous to human PGAM2 (phosphoglycerate mutase 2).