Enables several functions, including ATP binding activity; identical protein binding activity; and magnesium ion binding activity. Involved in several processes, including actin cytoskeleton organization; protein phosphorylation; and regulation of small GTPase mediated signal transduction. Located in actomyosin; cell leading edge; and cell-cell junction. Orthologous to human CDC42BPA (CDC42 binding protein kinase alpha). [provided by Alliance of Genome Resources, Apr 2022]