Function: Calcium/calmodulin-dependent protein kinase belonging to a proposed calcium-triggered signaling cascade. May be involved in transcriptional regulation. May be involved in regulation of microtubule dynamics. In vitro, phosphorylates CREB1, CREBBP, PRM2, MEF2A, MEF2D and STMN1/OP18. May be involved in spermatogenesis. May play a role in the consolidation/retention of hippocampus-dependent long-term memory (By similarity).
Subcellular Localization: Cytoplasm (By similarity). Nucleus (By similarity). Note=Substantial localization in certain neuronal nuclei. In spermatids associated with chromatin and nuclear matrix (By similarity).