Receptor that plays a critical role in lung surfactant homeostasis. May play a role in controlling adipocyte function. Homodimer; disulfide-linked. Heterodimer of 2 chains generated by proteolytic processing; the large extracellular N-terminal fragment and the membrane-bound C-terminal fragment predominantly remain associated and non-covalently linked. Fragment generates by the processing enzyme furin remains attached to the extracellular N-terminal fragment. Interacts (via N-terminal extracellular domain) with SFTPD. Proteolytically cleaved at multiple sites: one in the GPS domain (S1 site) and the other in the SEA domain (S2 site). The proteolytic cleavage at S1 site generates an extracellular subunit and a seven-transmembrane subunit. The proteolytic cleavage at S2 site generates a fragment that undergoes proteolytic cleavage by the processing enzyme furin. Highly glycosylated. Belongs to the G-protein coupled receptor 2 family. Adhesion G-protein coupled receptor (ADGR) subfamily. Extended N-terminus. Contaminating sequence. Potential poly-A sequence.