Enables pantothenate kinase activity. Acts upstream of or within coenzyme A biosynthetic process. Located in several cellular components, including cytosol; nucleus; and recycling endosome. Part of clathrin coat. Is expressed in several structures, including alimentary system; central nervous system; genitourinary system; integumental system; and sensory organ. Orthologous to human PANK1 (pantothenate kinase 1). [provided by Alliance of Genome Resources, Apr 2022]