Predicted to enable gamma-butyrobetaine dioxygenase activity; identical protein binding activity; and zinc ion binding activity. Predicted to be involved in carnitine biosynthetic process. Located in mitochondrion. Is expressed in several structures, including alimentary system; genitourinary system; nervous system; respiratory system; and retina. Orthologous to human BBOX1 (gamma-butyrobetaine hydroxylase 1). [provided by Alliance of Genome Resources, Apr 2022]