Function: Calcium/calmodulin-dependent protein kinase belonging to a proposed calcium-triggered signaling cascade. May regulate calcium-mediated granulocyte function. May play a role in apoptosis of erythroleukemia cells. Activates MAP kinase MAPK3 (By similarity). In vitro, phosphorylates transcription factor CREM isoform Beta and probably CREB1.
Subcellular Localization: Cytoplasm (Probable). Nucleus (Probable). Note=Predominantly cytoplasmic (Probable). Also nuclear upon activation (Probable).