May be involved in protein trafficking from the plasma membrane to the early endosome (EE) as well as in homotypic fusion of endocytic organelles. Mediates the endocytic trafficking from early endosomes to late endosomes and lysosomes (By similarity). 261 STX7_RAT Stx7 Syntaxin-7 MSYTPGIGGDPAQLAQRISSNIQKITQCSAEIQRTLNQLGTPQDTPELRQQLQQEQQYTNQLAKETDKYIKEFGFLPTTPSEQRQRKIQKDRLVAEFTTALTNFQKVQRQAAEREKEFVARVRASSRVSGGFPEDSSKEKNFVSWESQTQPQVQVQDEEITEDDLRLIHERESSIRQLEADIMDINEIFKDLGMMIHEQGDVIDSIEANVESAEVHVQQANQQLSRAANYQRKSRKTLCIIILILVVGIVIIFFIVWGLKG