An analog of the endocannabinoid AEA found in brain tissue and in chocolate whose biosynthesis is reduced in the intestine of rats following food deprivation; an endogenous, potent agonist for PPARα (EC50 = 120 nM in a transactivation assay); systemic administration suppresses food intake and reduces weight gain in rats (10 mg/kg intraperitoneally) and PPARα wild type mice, but not in PPARα knockout mice