Catalyzes the trimethylation of 'Lys-116' in calmodulin.
Subcellular locations: Cytoplasm, Nucleus
Subcellular locations: Golgi apparatus
Isoform 1 is expressed in brain, liver, muscle colon and lung. Isoform 2 is expressed in colon, testis, kidney and brain. Isoform 1 and isoform 2 are expressed in normal lymphoblastoid cells but not in lymphoblastoid cells from patients with hypotonia-cystinuria syndrome.