It really bothered me that your companions would always attack radstags, even though the deer themselves don’t attack you. Entering their aggro radius makes them threaten, but if you get closer, they run away! I’m a big softie that doesn’t like killing animals, especially when it’s not necessary–hence this mod. Since the deer aren’t dangerous, I don’t consider it a cheat mod; all it does is add the radstags to the playerfriendfaction so your companions won’t go after them.
I do not know whether this affects rabid radstags because I haven’t encountered any since installing this, but I would assume that it does. If you use this mod and find out, please let me know and I’ll try and make a patch for it!