Predicted to enable ATP binding activity; identical protein binding activity; and protein kinase activity. Involved in regulation of acetyl-CoA biosynthetic process from pyruvate. Located in mitochondrion. Part of mitochondrial pyruvate dehydrogenase complex. Is expressed in several structures, including alimentary system; brain; genitourinary system; limb mesenchyme; and sensory organ. Orthologous to human PDK1 (pyruvate dehydrogenase kinase 1). [provided by Alliance of Genome Resources, Apr 2022]