function:TRAP proteins are part of a complex whose function is to bind calcium to the ER membrane and thereby regulate the retention of ER resident proteins.,similarity:Belongs to the TRAP-beta family.,subunit:Heterotetramer of TRAP-alpha, TRAP-beta, TRAP-delta and TRAP-gamma. Interacts with TMEM173/STING.,
Endoplasmic reticulum membrane; Single-pass type I membrane protein.