BIDDEFORD — Ezekiel “Zeke” Callanan will no longer serve as executive director for Heart of Biddeford.

The decision, announced Thursday, is effective immediately, Board President Megan Rochelo said. She declined to comment on reasons for Callanan’s firing.

“We wish him well in his future endeavors,” she said.

Callanan assumed the role of executive director on Nov. 30, 2009. He replaced Rachael Weyand, who served as executive director for five years. The nonprofit organization was formed in 2004 to revitalize the city’s downtown district.

“I am very grateful to have been a part of this warm community for the past year,” Callanan wrote in an e-mail. “Being the director of a small community building and economic development organization presents many challenges. I wish my very best to the board of directors of the Heart of Biddeford, and hope they find a more appropriate fit for this position.”

He came to Heart of Biddeford with experience in the nonprofit sector, having founded the Maine Volunteer Lawyers for the Arts in 2008. Callanan is still active as president of the board for that organization.

The Heart of Biddeford board plans to meet next week to further discuss finding a replacement, Rochelo said.