Cellular receptors regulate physiological responses by interacting with ligands, thus playing a crucial role in intercellular communication. Receptors are categorized on the basis of their location and engage in diverse biochemical mechanisms, which include posttranslational modifications (PTMs). Considering the broad impact and diversity of PTMs on cellular functions, we focus narrowly on neddylation, a modification closely resembling ubiquitination. We systematically organize its canonical and noncanonical roles in modulating proteins associated with cellular receptors with the goal of providing a more detailed perspective on the intricacies of both intracellular and cell-surface receptors.