The event included work sessions that featured case studies and exchange of information on the status of religious freedoms in European countries and initiatives to limit them.
The debate within the party, which has seven of 169 seats in parliament, is part of a larger dilemma facing left-wing parties in Europe.
Jewish and Muslim MKs united over past two years to advocate for reversal of Parliamentary Assembly of the Council of Europe resolution calling to ban ritual circumcision of children.
Decision elicits praise for repudiating PACE resolution equating the Jewish practice to mutilation.