Nuclear receptor that acts as a key metabolic sensor by regulating the expression of genes involved in bile acid synthesis, cholesterol homeostasis and triglyceride synthesis. Together with the oxysterol receptors NR1H3/LXR-alpha and NR1H2/LXR-beta, acts as an essential transcriptional regulator of lipid metabolism (By similarity). Activates the transcription of CYP2C38 (By similarity). Detected in liver and adrenal gland. Belongs to the nuclear hormone receptor family. NR5 subfamily.