The function of RAMP2 (receptor activity modifying protein 2, ENSG00000131477) is as follows. Accessory protein that interacts with and modulates the function of G protein-coupled receptors including calcitonin gene- related peptide type 1 receptor (CALCRL) and calcitonin receptor (CALCR) (PubMed:9620797). Required for the transport of CALCRL to the plasma membrane (PubMed:9620797). Together with CALCRL, form a receptor complex for adrenomedullin/ADM (PubMed:22102369, PubMed:32296767, PubMed:9620797). Together with CALCR, act as a receptor complex for calcitonin/CT/CALC (PubMed:35324283). Together with CALCR, also act as a receptor complex for amylin/IAPP (PubMed:35324283). {ECO:0000269|PubMed:22102369, ECO:0000269|PubMed:32296767, ECO:0000269|PubMed:35324283, ECO:0000269|PubMed:9620797}.