Predicted to be involved in carbohydrate metabolic process. Predicted to be located in mitochondrial outer membrane. Predicted to be active in mitochondrion. Is expressed in adult head; embryonic brain; larval ventral nerve cord; and organism. Human ortholog(s) of this gene implicated in glycerol kinase deficiency. Orthologous to human GK (glycerol kinase); GK2 (glycerol kinase 2); and GK3 (glycerol kinase 3).