Heat Shock Protein Family A (Hsp70) Member 5; Heat Shock 70kDa Protein 5 (Glucose-Regulated Protein, 78kDa); Endoplasmic Reticulum Lumenal Ca(2+)-Binding Protein Grp78; Immunoglobulin Heavy Chain-Binding Protein; Glucose-Regulated Protein, 78kDa; GRP78; BIP; Heat Shock 70kD Protein 5 (Glucose-Regulated Protein, 78kD)

The protein encoded by this gene is a member of the heat shock protein 70 (HSP70) family. It is localized in the lumen of the endoplasmic reticulum (ER), and is involved in the folding and assembly of proteins in the ER. As this protein interacts with many ER proteins, it may play a key role in monitoring protein transport through the cell.