This was a Jacobite song, albeit it was Irish. Not sure why there would be a Scottish Gaelic translation of the song.
There are many websites offering the original lyrics to the song (all in Irish), though there is just one video of the original on YouTube sung by a guy who studied Old Irish.

Despite the Jacobite movement being largely associated with the Scottish and the song's origins being in Jacobite history, I don't think there is a Scottish Gaelic version and I wasn't able to find one if I recall correctly.