Running specs by tag

In Python and nosetests testing framework there is this idea of tagging your tests:

from nose.plugins.attrib import attr

@attr(speed='slow')
def test_big_download():
    ...

and running the tests that have only specific tags:

nosetests -a speed=slow

This is very helpful when there is a need to run tests from a specific category or type.

Is there anything similar in protractor + jasmine?

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The closest functionality I've found is the 'grep' option introduced in 1.6.0:

protractor conf.js --grep='pattern to match'