Did the East German Communists invite former Nazi Otto Strasser to join the government?

I read somewhere on the internet that former Nazi Party member Otto Strasser was invited to join the communist SED in East Germany sometime after WWII but he declined the offer. Is this true? Is there some reference somewhere?
Did the East German Communists invite former Nazi Otto Strasser to join the government?
It certainly makes sense. Why would a facist want to be a communist?