Predicted to enable protein kinase activity. Predicted to be involved in nucleic acid phosphodiester bond hydrolysis. Predicted to act upstream of or within protein phosphorylation. Predicted to be located in acrosomal vesicle. Predicted to be active in cytoplasm. Orthologous to human STK31 (serine/threonine kinase 31). [provided by Alliance of Genome Resources, Apr 2022]