Enables glucokinase activity and peptidoglycan binding activity. Involved in carbohydrate phosphorylation; positive regulation of cytokine production involved in immune response; and positive regulation of interleukin-1 beta production. Located in several cellular components, including membrane raft; mitochondrion; and sperm principal piece. Is expressed in several structures, including alimentary system; integumental system; nervous system; respiratory system; and sensory organ. Human ortholog(s) of this gene implicated in Charcot-Marie-Tooth disease type 4G; anemia (multiple); hematologic cancer (multiple); obesity; and retinitis pigmentosa. Orthologous to human HK1 (hexokinase 1). [provided by Alliance of Genome Resources, Apr 2022]