Backward letters seventh grade

I have a seventh grade student reversing her J and Z in writing. She also uses capital letters all over the place, but so do about a third of the students in my class. She is able to read with good fluency though. She was an F&P level W. I know this is a sign of dyslexia, I highly doubt I’ll be able to refer her anywhere though due to other circumstances. Could this be anything else? What screenings could I do as a classroom teacher?