Receptor for the C-terminal sequence motif K-D-E-L that is present on endoplasmic reticulum resident proteins and that mediates their recycling from the Golgi back to the endoplasmic reticulum.
Subcellular locations: Golgi apparatus membrane, Cytoplasmic vesicle, COPI-coated vesicle membrane, Endoplasmic reticulum membrane, Endoplasmic reticulum-Golgi intermediate compartment membrane
Localized in the Golgi in the absence of bound proteins with the sequence motif K-D-E-L. Trafficks back to the endoplasmic reticulum together with cargo proteins containing the sequence motif K-D-E-L.