Functions as a GC-rich promoter-specific transactivating transcription factor.
Subcellular locations: Nucleus, Cytoplasm
According to , it localizes to the cytoplasm.
Widely expressed. Some isoforms may be specifically expressed in veins and arteries (at protein level). Isoform 4 is widely expressed. Isoform 1, isoform 2 and isoform 3 may be specifically expressed in vascular smooth muscle cells.