CT84, MAPKK like protein kinase, Nori3, PBK, PDZ binding kinas, Serine/threonine protein kinase, SPK, TOPK.
Phosphorylates MAP kinase p38. Seems to be active only in mitosis. May also play a role in the activation of lymphoid cells. When phosphorylated, forms a complex with TP53, leading to TP53 destabilization and attenuation of G2/M checkpoint during doxorubicin-induced DNA damage.