High affinity receptor for interleukin-3, interleukin-5 and granulocyte-macrophage colony-stimulating factor. Heterodimer of an alpha and a beta subunit (PubMed:10477686). The beta subunit is common to the IL3, IL5 and GM-CSF receptors. The signaling GM-CSF receptor complex is a dodecamer of two head-to-head hexamers of two alpha, two beta, and two ligand subunits. Interacts with TMEM102; this interaction occurs preferentially in the absence of CSF2 (By similarity). Interacts with FCER1G; this interaction is direct (PubMed:19098920). Interacts with LYN. The WSXWS motif appears to be necessary for proper protein folding and thereby efficient intracellular transport and cell-surface receptor binding. The box 1 motif is required for JAK interaction and/or activation. May be phosphorylated by LYN. Belongs to the type I cytokine receptor family. Type 4 subfamily.