该基因编码的蛋白是一种赖氨酸N-甲基转移酶，它能将组蛋白H4的Lys-20单甲基化以影响某些基因的转录抑制编码蛋白是细胞增殖所必需的，在染色质凝聚中起作用。[由RefSeq提供，2016年5月]
The protein encoded by this gene is a protein-lysine N-methyltransferase that can monomethylate Lys-20 of histone H4 to effect transcriptional repression of some genes. The encoded protein is required for cell proliferation and plays a role in chromatin condensation. [provided by RefSeq, May 2016]