Binds DNA and activates transcription of CYP11A1. Interaction with CREBBP and EP300 results in a synergistic transcriptional activation of CYP11A1. Interacts with CREBBP and EP300. Interacts with DNTTIP1 and DNTT. Highly expressed in kidney, lung and brain. In the brain, expression was seen in the basal ganglia, hippocampus, piriform cortex, cerebral cortex, ventromedial nucleus of the hypothalamus and the dorsal and superior central nuclei of the raphe. At 15.5 dpc, highly expressed in brain, lung, adrenal, thymus and kidney. Expression was also seen in spinal cord, retina and snout.