Good advice from Hardlinesmaster. Yes you can transfer even after "only" working at Target for 5 months. What you want to do is both talk to your current ETL-HR about transferring to the Target close to school, and also reach out to the ETL-HR at the Target you are interested in transferring to and inquiring about openings. You may be able to slide into a similar position, or something different. But Target usually loves transfers as they get to avoid spending payroll on orientation and training.
Pay depends on position and is influenced by things like metro/non-metro, COL, etc. From the sounds of it, it's not likely you would lose pay.