該基因產物屬于組蛋白脫乙酰基酶家族。組蛋白脫乙酰基酶通過形成大的多蛋白復合物起作用，并負責核心組蛋白（H2A、H2B、H3和H4）N端賴氨酸殘基的脫乙酰化。這種蛋白通過與許多不同的蛋白質結合形成轉錄抑制復合物，包括哺乳動物鋅指轉錄因子YY1。因此，它在轉錄調控、細胞周期進展和發育事件中起著重要作用。選擇性剪接導致多個轉錄變體。
This gene product belongs to the histone deacetylase family. Histone deacetylases act via the formation of large multiprotein complexes, and are responsible for the deacetylation of lysine residues at the N-terminal regions of core histones (H2A, H2B, H3 and H4). This protein forms transcriptional repressor complexes by associating with many different proteins, including YY1, a mammalian zinc-finger transcription factor. Thus, it plays an important role in transcriptional regulation, cell cycle progression and developmental events. Alternative splicing results in multiple transcript variants.