Birmingham MP deselected over LGBT row to stand as independent
Roger Godsiff was deselected by the Labour party earlier this year.
The 73-year-old, who represented Hall Green, was then told this week by the The National Executive Committee (NEC) he would not be endorsed as a candidate in the December election and someone else would run in his place.
On Thursday Mr Godsiff announced he would run for election in his former constituency as an Independent Labour candidate.
He said that "a small intolerant vindictive group within the LGBT community'' had carried out a "vicious and vindictive campaign of character assassination against me using social media and misinformation to stir up a witch-hunt''.
The constituency is home to Anderton Park Primary School, which was at the centre of a series of school gate protests earlier this year. It led to a court injunction banning demonstrations inside an exclusion zone around the site.
Mr Godsiff was criticised after telling protesters they had a "just cause''. Shadow education secretary Angela Rayner reported the "discriminatory and irresponsible'' comments to chief whip Nick Brown.
He was then reprimanded by the chief whip and instructed not to repeat his comments.
In a statement Mr Godsiff said: "I have always put the interests of my constituents above everything else and I don't succumb to threats.
"I have supported the rights of parents to have a say, not a veto, over how the most sensitive aspects of the Equality Act are taught to young children."