Is an ortholog of human PRKD3 (protein kinase D3). Exhibits protein serine\/threonine kinase activity. Is involved in several processes, including activation of immune response\; defense response to Gram-positive bacterium\; and determination of adult lifespan. Localizes to several cellular components, including the cell cortex\; neuron projection\; and neuronal cell body. Is expressed in several tissues, including the head\; the nervous system\; the pharynx\; and the sensillum.