OPRD1 (Opioid Receptor Delta 1) is a Protein Coding gene. Diseases associated with OPRD1 include Morphine Dependence and Heroin Dependence. Among its related pathways are Signaling by GPCR and Sphingolipid signaling pathway. Gene Ontology (GO) annotations related to this gene include G protein-coupled receptor activity and opioid receptor activity. An important paralog of this gene is OPRM1.