May play an important role in cardiac antiarrhythmia via the strong suppression of voltage-gated L-type Ca2+ currents. Regulates voltage-dependent L-type calcium channel subunit alpha-1C trafficking to the cell membrane By similarity. Inhibits cardiac hypertrophy through the calmodulin-dependent kinase II (CaMKII) pathway. Inhibits phosphorylation and activation of CAMK2D.
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