Possible role in transport between endoplasmic reticulum and Golgi. May form a heteromeric complex composed of ERGIC1, ERGIC2 and ERGIC3 (PubMed:31142615). Interacts with ERGIC3, the interaction is required for the stable expression of both proteins (PubMed:31142615). May interact with EEF1A1 (PubMed:17980171). Cycles between the endoplasmic reticulum and the Golgi. According to a report, localizes to the nucleus (PubMed:11445006). Another report shows a partial localization in the nucleus (PubMed:17980171). Ubiquitously expressed. Belongs to the ERGIC family.