Predicted to enable several functions, including ATP binding activity; magnesium ion binding activity; and protein homodimerization activity. Involved in hippo signaling and positive regulation of substrate-dependent cell migration, cell attachment to substrate. Acts upstream of or within several processes, including animal organ development; epithelial tube morphogenesis; and regulation of signal transduction. Located in cytoplasm and nucleus. Is expressed in ovary; renal vasculature; and testis. Orthologous to human STK4 (serine/threonine kinase 4). [provided by Alliance of Genome Resources, Apr 2022]