Dear Muhammad Shahbaz Munir,
Thank you for your question about the UCSC Genome Browser. The liftOver files for galGal3 to galGal5 have been added and can be found here:
http://hgdownload.cse.ucsc.edu/goldenPath/galGal3/liftOver/. I hope this is helpful. If you have any further questions, please reply to
gen...@soe.ucsc.edu. All messages sent to that address are archived on a publicly-accessible Google Groups forum. If your question includes sensitive data, you may send it instead to
genom...@soe.ucsc.edu.
-Chris V
UCSC Genome Browser