該基因編碼過氧化物酶體增殖物激活受體（PPAR）家族的成員。編碼的蛋白質被認為是轉錄抑制和核受體信號傳導的一個整合體。它可能會抑制配體誘導的過氧化物酶體增殖物激活受體α和γ的轉錄活性，盡管這種效應的證據是不一致的。這種基因在結直腸癌細胞中的表達可能是可變的，但通常相對較低。小鼠的基因敲除研究表明該蛋白在胼胝體髓鞘形成、脂質代謝、分化和表皮細胞增殖中起作用。選擇性剪接導致編碼不同蛋白質亞型的多個轉錄變體。
This gene encodes a member of the peroxisome proliferator-activated receptor (PPAR) family. The encoded protein is thought to function as an integrator of transcriptional repression and nuclear receptor signaling. It may inhibit the ligand-induced transcriptional activity of peroxisome proliferator activated receptors alpha and gamma, though evidence for this effect is inconsistent. Expression of this gene in colorectal cancer cells may be variable but is typically relatively low. Knockout studies in mice suggested a role for this protein in myelination of the corpus callosum, lipid metabolism, differentiation, and epidermal cell proliferation. Alternative splicing results in multiple transcript variants encoding distinct protein isoforms.