Predicted to enable several functions, including ATP binding activity; identical protein binding activity; and magnesium ion binding activity. Predicted to be involved in hippo signaling; protein phosphorylation; and regulation of MAPK cascade. Predicted to act upstream of or within several processes, including embryonic organ development; nervous system development; and regulation of signal transduction. Predicted to be located in nucleus. Predicted to be part of protein-containing complex. Predicted to be active in cytoplasm. Orthologous to human STK3 (serine/threonine kinase 3). [provided by Alliance of Genome Resources, Apr 2022]