The Lord Chancellor acts as Speaker of the House of
Lords. He is an important symbolic figure, with influence
in all areas of government and the law. He is the head of
the judiciary. He is an influential member of the
government, with a seat in cabinet. And he is the senior
figure in the House of Lords - though his powers are far
less than the Speaker in the Commons.
He does not, for instance, keep order in the house, since it
is a longstanding tradition that the Lords keep themselves in order.
He has no casting vote, and does not interpret points of order. However, he is permitted to take part in debates as an ordinary member, provided he steps aside from the Woolsack to do so.