GET4 is a component of the BAT3 complex, a multiprotein complex involved in the post-translational delivery of tail-anchored (TA) membrane proteins to the endoplasmic reticulum membrane. TA membrane proteins, also named type II transmembrane proteins, contain a single C-terminal transmembrane region. The complex acts by facilitating TA proteins capture by ASNA1/TRC40: it is recruited to ribosomes synthesizing membrane proteins, interacts with the transmembrane region of newly released TA proteins, and transfers them to ASNA1/TRC40 for targeting. Protein Interaction Partner: HUWE1, PRKAB2, FAF1, VAPB, SGTA, UBC, RABEP2, LSM8, MTA2, CSTF2, FAF2, BAG6, UBL4A, VCP, EXOC2, SEC61B, TRA, AMFR, KEAP1, TMEM256, KIAA1377, ATP5H, KIFC2, EEF1G, UBAC2, SNCAIP, PLK1, PRKCSH, KAT5, TTR, PTMS, SOD2, CDKN1A, CAPNS1, WRAP73, Protein Size: 274