Cell death activator CIDE-A (CIDEA)

Acts as a CEBPB coactivator in mammary epithelial cells to control the expression of a subset of CEBPB downstream target genes, such as ID2, IGF1, PRLR, SOCS1, SOCS3, XDH, but not casein. By interacting with CEBPB, strengthens the institution of CEBPB using the XDH promoter, increases histone acetylation and dissociates HDAC1 in the promoter (By similarity).

Binds to lipid droplets and modulates their enlargement, thereby restricting lipolysis and favoring storage. At focal contact sites between lipid droplets, promotes directional internet neutral lipid transfer from the smaller to larger lipid droplets.