Thanks so much for this question. You asked "Does The Urantia Book teach a version of The Golden Rule?"
According to The Urantia Book, some form of the Golden Rule has been in existence for most of mankind's history, and its essence can be found in all religions. Jesus also upheld and exalted this rule of living, but he sought to upstep this truth to a higher level of unselfishness asking us to love and serve one another as he loves and serves us. This new Golden Rule that he taught to his disciples was simply "do to all men that which you know I would do to them in like circumstances."
I don't know about you, but I am of the opinion that this new way of expressing the Golden Rule is a vast improvement on this amazing "rule of living," which Jesus discusses at some length HERE.
Again, thanks for this question to us here at TruthBook.